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Detective Chief Inspector Derek Williams and his team at Gloucestershire CID, have been trying to track down a serial killer terrorizing Cheltenham Town for several months. They know it is only a matter of time before the killer, who they believe is a woman, will strike again, but they dont know where, when or who. Will they be able to stop her before she claims another innocent victim? During their investigations they stumble across some other dirty dealings, tax evasion and drug running. The police combine forces to take them down, but will it all go to plan?
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It’s November 1967, and when a girl’s body is found in the burning embers of a fire in a farmer’s field in Cheshire, DCI Sheraton begins a complex investigation. When a second body is found a short time later, the hunt now commences for a possible serial killer. Though, are the two really connected? With murder, hidden secrets and revenge, all combining in this fast-moving thriller, is it just a question of time before the crimes are eventually detected? There are several twists and turns in this latest entertaining crime thriller by David McCaddon, which is sure to delight his readers and keep them gripped until the very last page.
Small and large telescopes are being installed all around the world. Astronomers have thus acquired better access to more modern equipment; not in the least to photometers, which are very important tools for the contemporary observer. This development of higher quality and more sensitive equipment makes it very necessary to improve the accuracy of the measurements. This guide helps the astronomer and astronomy student to improve the quality of their photometric measurements and to extract a maximum of information from their observations. The book is based on the authors' observing experience, spending numerious nights behind various instruments at many different observatories.
This textbook describes the equipment, observational techniques, and analysis used in the investigation of stellar photospheres. Now in its fourth edition, the text has been thoroughly updated and revised to be more accessible to students. New figures have been added to illustrate key concepts, while diagrams have been redrawn and refreshed throughout. The book starts by developing the tools of analysis, and then demonstrates how they can be applied. Topics covered include radiation transfer, models of stellar photospheres, spectroscopic equipment, how to observe stellar spectra, and techniques for measuring stellar temperatures, radii, surface gravities, chemical composition, velocity fields, and rotation rates. Up-to-date results for real stars are included. Written for starting graduate students or advanced undergraduates, this textbook also includes a wealth of reference material useful to researchers. eBook formats include color imagery while print formats are greyscale only; a wide selection of the color images are available online.
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